I used an EZWiring harness on a buddies '50 F1 with no problems. See the link below for how I mounted it. http://www.jalopyjournal.com/forum/showthread.php?t=632253
As a dealer I may be considered biased, but like American Autowire more than painless, or EZ wire personally
I just made my own. It works fine and it is not one size fits all. There are several wire kits available through Alliance vendors that are excelent products just pic one.
Sorry to disappoint but I wire all my own from scratch. If you were closer I might have offered to do yours.
no offense taken, I have traded the wiring for a lot of stuff over the years. A 34 Chevy is coming tomorrow, he has a golf cart I want to lift.